Process of hydroformylating cyclic acrolein acetals
申请人:E.I. DU PONT DE NEMOURS AND COMPANY
公开号:EP0003753A1
公开(公告)日:1979-09-05
A process for hydroformylating a cyclic acrolein acetal to form the corresponding cyclic acrolein acetal aldehyde, said process comprising conducting said hydroformylation in the presence of carbon monoxide, hydrogen, rhodium complex catalyst and 1-3%of excess triphenyl phosphite ligand based on the acetal at a pressure of carbon monoxide of from 5-20 psia and a pressure of hydrogen of from 10- 400 psia maintained with a gas having a H2:CO ratio of from 1:1-20:1 and a temperature of from 100-115°C, the rhodium content of said catalyst being 1-50 ppm of rhodium based on the acetal.